Oct 2015
Electricity Distribution
Overhead Line Vibration Monitoring Phase 2
Oct 2015
Jul 2016
Scottish and Southern Electricity Networks, Scottish Hydro Electric Power Distribution and Southern Electric Power Distribution
SSEN Future Networks Team
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Network Innovation Allowance
Network Monitoring, Overhead Lines, Asset Management and Conductors
This project will complete the development of a technical method that commenced in a previous Innovation Funding Incentive (IFI) project. In that project, wire mounted sensors incorporating electronics for detecting change in angle, wire sag and impact of a wire strike were developed. The IFI phase led to the production of prototype sensors which demonstrated proof of concept through successful vibration testing on overhead lines.

This project will install a sample of the prototypes on representative sections of live overhead lines and monitor their performance, as well as that of the server, over a period of 3 months. At the end, an evaluation will be carried out to confirm the suitability of the system for vibration and movement monitoring in a live high voltage environment.

This project will include the final development and demonstrate the ability of previously developed prototype sensors and the supporting server to provide notification of impacts to OHL conductors and/or movement of the supporting poles, so that the DNO control room can be able to decide on the appropriate action that could avoid outages, reduce the impact of vegetation on the overhead network, and reduce the potential for serious injury/death to members of the public.

• To demonstrate that wire mounted sensors can sense and differentiate between wire strikes and wire sags, and other sources of conductor movement including e.g. wind, animal rubbing, birds perching and vehicles passing.

• To demonstrate that the information from the sensors can be used to discriminate between varying types of wire impacts, and reject false positives, e.g. heavy birds landing or colliding with the line.

• This project will try to establish if the prototype sensors can be self-powered using energy harvested off the line, are able to operate at voltages between 11kV and 70kV and that the associated server software is fit for purpose

The project will be a success if it can demonstrate whether or not wire mounted sensors can be used to improve customer service by improving the management of contact with, and damage to, overhead lines and poles.